<template>
  <div class="book-management">
    <el-button type="primary" @click="dialogVisible = true">添加图书</el-button>
    
    <el-table :data="books" style="width: 100%">
      <el-table-column prop="id" label="ID" width="180"></el-table-column>
      <el-table-column prop="title" label="书名" width="180"></el-table-column>
      <el-table-column prop="author" label="作者"></el-table-column>
      <el-table-column prop="copies" label="库存"></el-table-column>
      <el-table-column label="操作">
        <template slot-scope="scope">
          <el-button size="mini" type="danger" @click="handleDelete(scope.$index)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <el-dialog title="添加图书" :visible.sync="dialogVisible" width="30%">
      <el-form :model="newBook" label-width="80px">
        <el-form-item label="书名">
          <el-input v-model="newBook.title"></el-input>
        </el-form-item>
        <el-form-item label="作者">
          <el-input v-model="newBook.author"></el-input>
        </el-form-item>
        <el-form-item label="库存">
          <el-input-number v-model="newBook.copies" :min="1"></el-input-number>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取消</el-button>
        <el-button type="primary" @click="addBook">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      books: [
        {"id": 1, "title": "Python编程", "author": "John Doe", "copies": 4},
        {"id": 2, "title": "历史的秘密", "author": "Jane Smith", "copies": 3},
        {"id": 3, "title": "宇宙探索", "author": "Emily Brown", "copies": 2},
        {"id": 4, "title": "健康生活", "author": "Mike Johnson", "copies": 5},
        {"id": 5, "title": "数学之美", "author": "Sarah Lee", "copies": 4},
        {"id": 6, "title": "艺术欣赏", "author": "David White", "copies": 3},
        {"id": 7, "title": "编程入门", "author": "Alice Green", "copies": 2},
        {"id": 8, "title": "科幻世界", "author": "Frank Black", "copies": 5},
        {"id": 9, "title": "自然奇观", "author": "Grace Blue", "copies": 4},
        {"id": 10, "title": "音乐之声", "author": "Tom Red", "copies": 3}
      ],
      dialogVisible: false,
      newBook: {
        title: '',
        author: '',
        copies: 1
      }
    }
  },
  methods: {
    addBook() {
      const newId = this.books.length > 0 
        ? Math.max(...this.books.map(book => book.id)) + 1 
        : 1;
      
      this.books.push({
        id: newId,
        ...this.newBook
      });
      
      this.dialogVisible = false;
      this.newBook = { title: '', author: '', copies: 1 };
    },
    handleDelete(index) {
      this.$confirm('确认删除该图书吗?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.books.splice(index, 1);
        this.$message({
          type: 'success',
          message: '删除成功!'
        });
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        });          
      });
    }
  }
}
</script>

<style scoped>
.book-management {
  padding: 20px;
}
</style>